R&S SMC100A Command Description
1411.4060.32 6.73 E-1
[SOURce:]ROSCillator[:INTernal]:ADJust:VALue 0 ... 4095
The command specifies the frequency correction value (adjustment value).
Example:
ROSC:ADJ:VAL 1400
'sets the adjustment value to 1400.
*RST value Resolution Options SCPI
- 1 Device-specific
[SOURce:]ROSCillator:SOURce INTernal | EXTernal
The command selects between internal and external reference frequency.
Parameters: INTernal
The internal reference oscillator is used. The reference signal is provided at
the REF OUT connector.
EXTernal
An external reference signal is used. It must have a frequency of 10 MHz and
must be input at the REF IN connector at the rear of the instrument.
Example:
ROSC:SOUR EXT
'selects the external source.
*RST value Resolution Options SCPI
- - - Device-specific
SOURce:SWEep Subsystem
This subsystem contains the commands for checking the RF sweeps, i.e. the sweeps of the RF
generators. Sweeps are always triggered, except for the MANual sweep mode. The frequency sweep is
activated by the command SOURce:FREQuency:MODE SWEep, and the level sweep by the command
SOURce:POWer:MODE SWEep. All sweeps, including the LF sweep, can be set independently of each
other.
The keyword SOURce is optional with commands and can be omitted.
A sweep is set in several steps which are shown below taking a frequency sweep as an example:
1. Set the sweep range.
[SOURce:]FREQuency:CENTer 200 MHz
[SOURce:]FREQuency:SPAN 300 MHz
2. Select linear or logarithmic spacing.
[SOURce:]SWEep[:FREQuency]:SPACing LIN
3. Set the step width and dwell time.
[SOURce:]SWEep[:FREQuency]:STEP:LINear 20 MHz
[SOURce:]SWEep[:FREQuency]:DWELl 12 ms
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